Tom Perkins, co-founder of Kleiner Perkins Caufield & Byers, stands for a photograph in his San Francisco home. Perkins has apologised for comparing today’s treatment of wealthy Americans to the persecution of Jews in Nazi Germany, but stands by his message around class warfare. Photographer: David Paul Morris/Bloomberg

When Tom Perkins, founder of the prominent Silicon Valley venture capital firm Kleiner Perkins Caufield & Byers wrote a letter to the Wall Stre(...)